import Vue from 'vue'
import VueRouter from 'vue-router'

// import Login from '../components/Login.vue'
const Login = () => import(/* webpackChunkName: "login_home_welcome" */ '../components/Login.vue')

// import Home from '../components/Home.vue'
const Home  = () => import(/* webpackChunkName: "login_home_welcome" */ '../components/Home.vue')
// import Welcome from '../components/Welcome.vue'
const Welcome  = () => import(/* webpackChunkName: "login_home_welcome" */ '../components/Welcome.vue')


// import Users from '../components/user/Users.vue'
// import Rights from '../components/power/Rights.vue'
// import Roles from '../components/power/Roles.vue'
const Users  = () => import(/* webpackChunkName: "users_Rights_Roles" */ '../components/user/Users.vue')
const Rights  = () => import(/* webpackChunkName: "users_Rights_Roles" */ '../components/power/Rights.vue')
const Roles  = () => import(/* webpackChunkName: "users_Rights_Roles" */ '../components/power/Roles.vue')


// import Cates from '../components/goods/Cate.vue'
// import Params from '../components/goods/Params.vue'
const Cates  = () => import(/* webpackChunkName: "cates_Params" */ '../components/goods/Cate.vue')
const Params  = () => import(/* webpackChunkName: "cates_Params" */ '../components/goods/Params.vue')


// import GoodsList from '../components/goods/List.vue'
// import Add from '../components/goods/Add.vue'
const GoodsList  = () => import(/* webpackChunkName: "goodslist_Add" */ '../components/goods/List.vue')
const Add  = () => import(/* webpackChunkName: "goodslist_Add" */ '../components/goods/Add.vue')


// import Order from '../components/order/Order.vue'
// import Report from '../components/report/Report.vue'
const Order  = () => import(/* webpackChunkName: "order_Report" */ '../components/order/Order.vue')
const Report  = () => import(/* webpackChunkName: "order_Report" */ '../components/report/Report.vue')


Vue.use(VueRouter)

const routes = [
  { path: '/', redirect: '/login' },
  { path: '/login', component: Login },
  { 
    path: '/home', 
    component: Home, 
    redirect: '/welcome',
    children: [
      { path: '/welcome', component: Welcome },
      { path: '/users', component:Users},
      { path: '/rights', component:Rights},
      { path: '/roles', component:Roles},
      { path: '/categories', component:Cates},
      { path: '/params', component:Params},
      { path: '/goods', component:GoodsList},
      { path: '/goods/add', component:Add},
      { path: '/orders', component:Order},
      { path: '/reports', component:Report}
    ]
  }
]

const router = new VueRouter({
  routes
})

router.beforeEach((to, from, next) => {
  // to 将要访问的
  // from 从哪里来得
  // 是一个函数，表示放行 next next('/login') 强制跳转
  if (to.path === '/login') return next();
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token');
  if (!tokenStr) return next('/login');
  next();
})

export default router
